MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged as malicious by a machine learning classifier and contains numerous embedded links. One of these links, 'https://ttraff.ru/pify?keyword=eukaryotic+chromosome+structure+answers', points to a known malicious redirector. The document body, though heavily obfuscated, also contains this URL and other Shopify-hosted PDF links, suggesting a link farm or SEO poisoning tactic to lure victims. The presence of multiple external links, including a malicious redirector, strongly indicates an attempt to lead users to harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://ttraff.ru/pify?keyword=eukaryotic+chromosome+structure+answers
- http://files.zummoscafescranton.com/uploads/1/3/0/7/130739480/jivoj.pdf
- https://cdn.shopify.com/s/files/1/0440/1741/8405/files/rads_error_lol_2016.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mokotutirajozejimus.pdf
- https://cdn.shopify.com/s/files/1/0435/0941/6095/files/scala2_water_booster_pump_manual.pdf
- https://cdn.shopify.com/s/files/1/0433/6982/4407/files/lowes_ludington_mi.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xeniwepisovera.pdf
- https://cdn.shopify.com/s/files/1/0429/5180/3033/files/43396759907.pdf
- https://cdn.shopify.com/s/files/1/0431/1344/7581/files/naqaab_bengali_movie_all_video_song.pdf
- https://cdn.shopify.com/s/files/1/0428/7227/5103/files/vigipuben.pdf
- https://cdn.shopify.com/s/files/1/0431/1921/4758/files/99136582097.pdf
- https://cdn.shopify.com/s/files/1/0447/8458/2813/files/list_of_percussion_instruments_with_pictures.pdf
- https://cdn.shopify.com/s/files/1/0428/1381/6995/files/apical_dominance.pdf
- https://cdn.shopify.com/s/files/1/0431/3320/6689/files/63310150221.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005ec2.bin29c67fca2beeb69d5aeeb4a725b9fbff0b1a3b6d3643b895733e812985d103cc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5EC2 | 5220 bytes |
font_01_sfnt_off0000707a.bin09df23a84c02ae5ce2dfa1ebae207b50e96eb406bc405629a1d33278ac0a3a55 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x707A | 10084 bytes |
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